One of Chicago's best-kept secrets is its official motto: urbs in horto. It translates to 'city in a garden.' We know. You're rolling your eyes. On days when you have to elbow your way onto the Red Line so you can stand packed like a sardine for 25 minutes, the city seems nothing like an urbs in horto. But maybe that's because you haven't discovered these secret gardens yet. So next time you need a breather, find one of these little known spots of greenery.